Electromagnetic probes in heavy-ion collisions: Messengers from the hot and dense phase
arXiv:1502.03767 · doi:10.1051/epjconf/20159700028
Abstract
Due to their penetrating nature, electromagnetic probes, i.e., lepton-antilepton pairs (dileptons) and photons are unique tools to gain insight into the nature of the hot and dense medium of strongly-interacting particles created in relativistic heavy-ion collisions, including hints to the nature of the restoration of chiral symmetry of QCD. Of particular interest are the spectral properties of the electromagnetic current-correlation function of these particles within the dense and/or hot medium. The related theoretical investigations of the in-medium properties of the involved particles in both the partonic and hadronic part of the QCD phase diagram underline the importance of a proper understanding of the properties of various hadron resonances in the medium.
arXiv comment8 pages, 2 figures; Contribution to the proceedings of the Resonance Workshop at Catania 2014
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